Specifications

3500D MACHINE OPERATION
19
• Lift boom and remove boom chock
block.
• Reduce engine RPM to idle.
• Raise cutterhead clear of stump.
• Engage cutterhead drive belts by
pushing down on engagement handle to
relieve pressure on engine slide stop.
Lift slide stop and slowly pull handle
back to engage belts.
• Increase engine RPM to full.
• Test controls for proper operation,
speed, and unobstructed movement.
• Cutter head swing speed should be
adjusted to a rate that will allow cutter
wheel to pass through stump smoothly.
If jerking, bouncing or significant drops
in engine speed occur, swing rate is too
rapid and must be decreased.
• Swing speed should be determined and
adjusted with the controls in the full
open position.
• A counter-rotating valve is located
within the hydraulic system to adjust this
speed. Turning the handle counter-
clockwise will open the bypass and slow
swing action. Turning it clockwise will
increase swing rate.
REMOVE BOOM CHOCK BLOCK